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Redeemable non-controlling interests held for sale (Details) - CNY (¥)	1 Months Ended	12 Months Ended
	Jan. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2016
Redeemable non-controlling interests
Net income attributable to mezzanine classified non-controlling interests shareholders		¥ 281,021,000	¥ 444,657,000	¥ 0
JD Finance
Redeemable non-controlling interests
Ordinary shares with preferential rights issued	¥ 6,650,000,000
Equity interest held (as a percent)					86.00%
Maximum period of contingent redemption of preferred shares	60 months
Annual compound interest rate (as a percent)	8.00%

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- Definition

The period within which shares are contingently redeemable and hence should be classified as mezzanine equity.

+ References

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- Definition

The percentage of annual compound interest rate included in the redemption price.

+ References

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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- Definition

Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.19)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Value of new stock classified as temporary equity issued during the period.

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